The aim of this preclinical study in volunteers is to assess the effect of arm positioning on ultrasound anatomy relevant to the performance of the axillary block.
ID
Source
Brief title
Condition
- Other condition
Synonym
Health condition
anatomie van perifere zenuwen
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
Do different positions of the arm have any effect on ultrasound visibility of
the radial nerve? If so, what is the optimal arm position for radial nerve to
be best visualized?
Secondary outcome
Distance of all four nerves to the skin and to the brachial artery,
respectively. Furthermore, the relative position of the nerves to the brachial
artery
Background summary
Ultrasound guided axillary block is one of the most commonly used methods of
regional anesthesia. It has been proven that the success of blocks is higher
and necessary volumes of local anesthetics are lower when each of the four
nerves nerves has been blocked separately. Due to its anatomic position radial
nerve is the most difficult to visualize when using ultrasound. This may lead
to unsatisfactory anesthesia when failing to visualize the radial nerve during
performance of ultrasound guided axillary block. Achieving a better visibility
of the radial nerve may help increasing the success rate and safety of axillary
nerve block.
Study objective
The aim of this preclinical study in volunteers is to assess the effect of arm
positioning on ultrasound anatomy relevant to the performance of the axillary
block.
Study design
single centre, prospective, study in volunteers done by two blinded observers
Study burden and risks
The only possible serious risk for the volunteers entering this study may be an
allergic reaction to ultrasound gel. Allergy to ultrasound gel is extremely
rare and by now only mild and localized reactions to that material have been
described.
Meibergdreef 9
Amsterdam 1100DD
NL
Meibergdreef 9
Amsterdam 1100DD
NL
Listed location countries
Age
Inclusion criteria
Informed consent,
age older than 18 years
Exclusion criteria
No written informed consent,
infection at the site of investigation,
known allergy to ultrasound gel,
known pathology of the axillary region,
unable to move the arm in the correct position for the study
BMI>30
Design
Recruitment
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
No registrations found.
In other registers
| Register | ID |
|---|---|
| CCMO | NL42116.018.12 |